X64: Added support for "with" and "switch".

src/x64/frames-x64.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 47 matching lines @@
   state->pc_address = reinterpret_cast<Address*>(sp - 1 * kPointerSize);
   // Determine frame type.
   if (Memory::Address_at(fp + ExitFrameConstants::kDebugMarkOffset) != 0) {
     return EXIT_DEBUG;
   } else {
     return EXIT;
   }
 }
 
 int JavaScriptFrame::GetProvidedParametersCount() const {
-  UNIMPLEMENTED();
-  return 0;
-}
-
-byte* ArgumentsAdaptorFrame::GetCallerStackPointer() const {
-  UNIMPLEMENTED();
-  return NULL;
+  return ComputeParametersCount();
 }
 
 
 void ExitFrame::Iterate(ObjectVisitor* a) const {
-  UNIMPLEMENTED();
+  // Exit frames on X64 do not contain any pointers. The arguments
+  // are traversed as part of the expression stack of the calling
+  // frame.
 }
 
 byte* InternalFrame::GetCallerStackPointer() const {
   // Internal frames have no arguments. The stack pointer of the
   // caller is at a fixed offset from the frame pointer.
   return fp() + StandardFrameConstants::kCallerSPOffset;
 }
 
 byte* JavaScriptFrame::GetCallerStackPointer() const {
-  UNIMPLEMENTED();
-  return NULL;
+  int arguments;
+  if (Heap::gc_state() != Heap::NOT_IN_GC || disable_heap_access_) {
+    // The arguments for cooked frames are traversed as if they were
+    // expression stack elements of the calling frame. The reason for
+    // this rather strange decision is that we cannot access the
+    // function during mark-compact GCs when the stack is cooked.
+    // In fact accessing heap objects (like function->shared() below)
+    // at all during GC is problematic.
+    arguments = 0;
+  } else {
+    // Compute the number of arguments by getting the number of formal
+    // parameters of the function. We must remember to take the
+    // receiver into account (+1).
+    JSFunction* function = JSFunction::cast(this->function());
+    arguments = function->shared()->formal_parameter_count() + 1;
+  }
+  const int offset = StandardFrameConstants::kCallerSPOffset;
+  return fp() + offset + (arguments * kPointerSize);
 }
 
 
+byte* ArgumentsAdaptorFrame::GetCallerStackPointer() const {
+  const int arguments = Smi::cast(GetExpression(0))->value();
+  const int offset = StandardFrameConstants::kCallerSPOffset;
+  return fp() + offset + (arguments + 1) * kPointerSize;
+}
+
+
 } }  // namespace v8::internal